[babeltrace.git] / formats / ctf / ir / event-class.c

/*
 * event-class.c
 *
 * Babeltrace CTF IR - Event class
 *
 * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
 *
 * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <babeltrace/ctf-ir/fields-internal.h>
#include <babeltrace/ctf-ir/field-types-internal.h>
#include <babeltrace/ctf-ir/event-class.h>
#include <babeltrace/ctf-ir/event-class-internal.h>
#include <babeltrace/ctf-ir/stream-class.h>
#include <babeltrace/ctf-ir/stream-class-internal.h>
#include <babeltrace/ctf-ir/trace-internal.h>
#include <babeltrace/ctf-ir/validation-internal.h>
#include <babeltrace/ctf-ir/utils.h>
#include <babeltrace/ref.h>
#include <babeltrace/ctf-ir/attributes-internal.h>
#include <babeltrace/compiler.h>
#include <babeltrace/endian.h>

static
void bt_ctf_event_class_destroy(struct bt_object *obj);

struct bt_ctf_event_class *bt_ctf_event_class_create(const char *name)
{
	int ret;
	struct bt_value *obj = NULL;
	struct bt_ctf_event_class *event_class = NULL;

	if (bt_ctf_validate_identifier(name)) {
		goto error;
	}

	event_class = g_new0(struct bt_ctf_event_class, 1);
	if (!event_class) {
		goto error;
	}

	event_class->id = -1;
	bt_object_init(event_class, bt_ctf_event_class_destroy);
	event_class->fields = bt_ctf_field_type_structure_create();
	if (!event_class->fields) {
		goto error;
	}

	event_class->attributes = bt_ctf_attributes_create();
	if (!event_class->attributes) {
		goto error;
	}

	obj = bt_value_integer_create_init(-1);
	if (!obj) {
		goto error;
	}

	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
		"id", obj);
	if (ret) {
		goto error;
	}

	BT_PUT(obj);

	obj = bt_value_string_create_init(name);
	if (!obj) {
		goto error;
	}

	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
		"name", obj);
	if (ret) {
		goto error;
	}

	BT_PUT(obj);

	return event_class;

error:
        BT_PUT(event_class);
	BT_PUT(obj);
	return event_class;
}

const char *bt_ctf_event_class_get_name(struct bt_ctf_event_class *event_class)
{
	struct bt_value *obj = NULL;
	const char *name = NULL;

	if (!event_class) {
		goto end;
	}

	if (event_class->name) {
		name = event_class->name;
		goto end;
	}

	obj = bt_ctf_attributes_get_field_value(event_class->attributes,
		BT_CTF_EVENT_CLASS_ATTR_NAME_INDEX);
	if (!obj) {
		goto end;
	}

	if (bt_value_string_get(obj, &name)) {
		name = NULL;
	}

end:
	BT_PUT(obj);
	return name;
}

int64_t bt_ctf_event_class_get_id(struct bt_ctf_event_class *event_class)
{
	struct bt_value *obj = NULL;
	int64_t ret = 0;

	if (!event_class) {
		ret = -1;
		goto end;
	}

	if (event_class->id >= 0) {
		ret = event_class->id;
		goto end;
	}

	obj = bt_ctf_attributes_get_field_value(event_class->attributes,
		BT_CTF_EVENT_CLASS_ATTR_ID_INDEX);
	if (!obj) {
		goto end;
	}

	if (bt_value_integer_get(obj, &ret)) {
		ret = -1;
	}

	if (ret < 0) {
		/* means ID is not set */
		ret = -1;
		goto end;
	}

end:
	BT_PUT(obj);
	return ret;
}

int bt_ctf_event_class_set_id(struct bt_ctf_event_class *event_class,
		uint32_t id)
{
	int ret = 0;
	struct bt_value *obj = NULL;
	struct bt_ctf_stream_class *stream_class = NULL;


	if (!event_class) {
		ret = -1;
		goto end;
	}

	stream_class = bt_ctf_event_class_get_stream_class(event_class);
	if (stream_class) {
		/*
		 * We don't allow changing the id if the event class has already
		 * been added to a stream class.
		 */
		ret = -1;
		goto end;
	}

	obj = bt_ctf_attributes_get_field_value(event_class->attributes,
		BT_CTF_EVENT_CLASS_ATTR_ID_INDEX);
	if (!obj) {
		goto end;
	}

	if (bt_value_integer_set(obj, id)) {
		ret = -1;
		goto end;
	}

end:
	BT_PUT(obj);
	BT_PUT(stream_class);
	return ret;
}

int bt_ctf_event_class_set_attribute(
		struct bt_ctf_event_class *event_class, const char *name,
		struct bt_value *value)
{
	int ret = 0;

	if (!event_class || !name || !value || event_class->frozen) {
		ret = -1;
		goto end;
	}

	if (!strcmp(name, "id") || !strcmp(name, "loglevel") ||
			!strcmp(name, "stream_id")) {
		if (!bt_value_is_integer(value)) {
			ret = -1;
			goto end;
		}
	} else if (!strcmp(name, "name") || !strcmp(name, "model.emf.uri") ||
			!strcmp(name, "loglevel_string")) {
		if (!bt_value_is_string(value)) {
			ret = -1;
			goto end;
		}
	} else {
		/* unknown attribute */
		ret = -1;
		goto end;
	}

	/* "id" special case: >= 0 */
	if (!strcmp(name, "id")) {
		int64_t val;

		ret = bt_value_integer_get(value, &val);

		if (ret) {
			goto end;
		}

		if (val < 0) {
			ret = -1;
			goto end;
		}
	}

	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
			name, value);

end:
	return ret;
}

int bt_ctf_event_class_get_attribute_count(
		struct bt_ctf_event_class *event_class)
{
	int ret = 0;

	if (!event_class) {
		ret = -1;
		goto end;
	}

	ret = bt_ctf_attributes_get_count(event_class->attributes);

end:
	return ret;
}

const char *
bt_ctf_event_class_get_attribute_name(
		struct bt_ctf_event_class *event_class, int index)
{
	const char *ret;

	if (!event_class) {
		ret = NULL;
		goto end;
	}

	ret = bt_ctf_attributes_get_field_name(event_class->attributes, index);

end:
	return ret;
}

struct bt_value *
bt_ctf_event_class_get_attribute_value(struct bt_ctf_event_class *event_class,
		int index)
{
	struct bt_value *ret;

	if (!event_class) {
		ret = NULL;
		goto end;
	}

	ret = bt_ctf_attributes_get_field_value(event_class->attributes, index);

end:
	return ret;
}

struct bt_value *
bt_ctf_event_class_get_attribute_value_by_name(
		struct bt_ctf_event_class *event_class, const char *name)
{
	struct bt_value *ret;

	if (!event_class || !name) {
		ret = NULL;
		goto end;
	}

	ret = bt_ctf_attributes_get_field_value_by_name(event_class->attributes,
		name);

end:
	return ret;

}

struct bt_ctf_stream_class *bt_ctf_event_class_get_stream_class(
		struct bt_ctf_event_class *event_class)
{
	return (struct bt_ctf_stream_class *) bt_object_get_parent(event_class);
}

struct bt_ctf_field_type *bt_ctf_event_class_get_payload_type(
		struct bt_ctf_event_class *event_class)
{
	struct bt_ctf_field_type *payload = NULL;

	if (!event_class) {
		goto end;
	}

	bt_get(event_class->fields);
	payload = event_class->fields;
end:
	return payload;
}

int bt_ctf_event_class_set_payload_type(struct bt_ctf_event_class *event_class,
		struct bt_ctf_field_type *payload)
{
	int ret = 0;

	if (!event_class) {
		ret = -1;
		goto end;
	}

	if (payload && bt_ctf_field_type_get_type_id(payload) !=
			BT_CTF_TYPE_ID_STRUCT) {
		ret = -1;
		goto end;
	}

	bt_put(event_class->fields);
	event_class->fields = bt_get(payload);
end:
	return ret;
}

int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class,
		struct bt_ctf_field_type *type,
		const char *name)
{
	int ret = 0;

	if (!event_class || !type || bt_ctf_validate_identifier(name) ||
		event_class->frozen) {
		ret = -1;
		goto end;
	}

	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
		BT_CTF_TYPE_ID_STRUCT) {
		ret = -1;
		goto end;
	}

	ret = bt_ctf_field_type_structure_add_field(event_class->fields,
		type, name);
end:
	return ret;
}

int bt_ctf_event_class_get_field_count(
		struct bt_ctf_event_class *event_class)
{
	int ret;

	if (!event_class) {
		ret = -1;
		goto end;
	}

	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
		BT_CTF_TYPE_ID_STRUCT) {
		ret = -1;
		goto end;
	}

	ret = bt_ctf_field_type_structure_get_field_count(event_class->fields);
end:
	return ret;
}

int bt_ctf_event_class_get_field(struct bt_ctf_event_class *event_class,
		const char **field_name, struct bt_ctf_field_type **field_type,
		int index)
{
	int ret;

	if (!event_class || index < 0) {
		ret = -1;
		goto end;
	}

	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
		BT_CTF_TYPE_ID_STRUCT) {
		ret = -1;
		goto end;
	}

	ret = bt_ctf_field_type_structure_get_field(event_class->fields,
		field_name, field_type, index);
end:
	return ret;
}

struct bt_ctf_field_type *bt_ctf_event_class_get_field_by_name(
		struct bt_ctf_event_class *event_class, const char *name)
{
	GQuark name_quark;
	struct bt_ctf_field_type *field_type = NULL;

	if (!event_class || !name) {
		goto end;
	}

	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
		BT_CTF_TYPE_ID_STRUCT) {
		goto end;
	}

	name_quark = g_quark_try_string(name);
	if (!name_quark) {
		goto end;
	}

	/*
	 * No need to increment field_type's reference count since getting it
	 * from the structure already does.
	 */
	field_type = bt_ctf_field_type_structure_get_field_type_by_name(
		event_class->fields, name);
end:
	return field_type;
}

struct bt_ctf_field_type *bt_ctf_event_class_get_context_type(
		struct bt_ctf_event_class *event_class)
{
	struct bt_ctf_field_type *context_type = NULL;

	if (!event_class || !event_class->context) {
		goto end;
	}

	bt_get(event_class->context);
	context_type = event_class->context;
end:
	return context_type;
}

int bt_ctf_event_class_set_context_type(
		struct bt_ctf_event_class *event_class,
		struct bt_ctf_field_type *context)
{
	int ret = 0;

	if (!event_class || event_class->frozen) {
		ret = -1;
		goto end;
	}

	if (context && bt_ctf_field_type_get_type_id(context) !=
			BT_CTF_TYPE_ID_STRUCT) {
		ret = -1;
		goto end;
	}

	bt_put(event_class->context);
	event_class->context = bt_get(context);
end:
	return ret;

}

void bt_ctf_event_class_get(struct bt_ctf_event_class *event_class)
{
	bt_get(event_class);
}

void bt_ctf_event_class_put(struct bt_ctf_event_class *event_class)
{
	bt_put(event_class);
}

BT_HIDDEN
int bt_ctf_event_class_set_stream_id(struct bt_ctf_event_class *event_class,
		uint32_t stream_id)
{
	int ret = 0;
	struct bt_value *obj;

	obj = bt_value_integer_create_init(stream_id);

	if (!obj) {
		ret = -1;
		goto end;
	}

	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
		"stream_id", obj);

	if (event_class->frozen) {
		bt_ctf_attributes_freeze(event_class->attributes);
	}

end:
	BT_PUT(obj);
	return ret;
}

static
void bt_ctf_event_class_destroy(struct bt_object *obj)
{
	struct bt_ctf_event_class *event_class;

	event_class = container_of(obj, struct bt_ctf_event_class, base);
	bt_ctf_attributes_destroy(event_class->attributes);
	bt_put(event_class->context);
	bt_put(event_class->fields);
	g_free(event_class);
}

BT_HIDDEN
void bt_ctf_event_class_freeze(struct bt_ctf_event_class *event_class)
{
	assert(event_class);
	event_class->frozen = 1;
	event_class->name = bt_ctf_event_class_get_name(event_class);
	event_class->id = bt_ctf_event_class_get_id(event_class);
	bt_ctf_field_type_freeze(event_class->context);
	bt_ctf_field_type_freeze(event_class->fields);
	bt_ctf_attributes_freeze(event_class->attributes);
}

BT_HIDDEN
int bt_ctf_event_class_serialize(struct bt_ctf_event_class *event_class,
		struct metadata_context *context)
{
	int i;
	int count;
	int ret = 0;
	struct bt_value *attr_value = NULL;

	assert(event_class);
	assert(context);

	context->current_indentation_level = 1;
	g_string_assign(context->field_name, "");
	g_string_append(context->string, "event {\n");
	count = bt_ctf_event_class_get_attribute_count(event_class);

	if (count < 0) {
		ret = -1;
		goto end;
	}

	for (i = 0; i < count; ++i) {
		const char *attr_name = NULL;

		attr_name = bt_ctf_event_class_get_attribute_name(
			event_class, i);
		attr_value = bt_ctf_event_class_get_attribute_value(
			event_class, i);

		if (!attr_name || !attr_value) {
			ret = -1;
			goto end;
		}

		switch (bt_value_get_type(attr_value)) {
		case BT_VALUE_TYPE_INTEGER:
		{
			int64_t value;

			ret = bt_value_integer_get(attr_value, &value);

			if (ret) {
				goto end;
			}

			g_string_append_printf(context->string,
				"\t%s = %" PRId64 ";\n", attr_name, value);
			break;
		}

		case BT_VALUE_TYPE_STRING:
		{
			const char *value;

			ret = bt_value_string_get(attr_value, &value);

			if (ret) {
				goto end;
			}

			g_string_append_printf(context->string,
				"\t%s = \"%s\";\n", attr_name, value);
			break;
		}

		default:
			/* should never happen */
			assert(false);
			break;
		}

		BT_PUT(attr_value);
	}

	if (event_class->context) {
		g_string_append(context->string, "\tcontext := ");
		ret = bt_ctf_field_type_serialize(event_class->context,
			context);
		if (ret) {
			goto end;
		}
		g_string_append(context->string, ";\n");
	}

	if (event_class->fields) {
		g_string_append(context->string, "\tfields := ");
		ret = bt_ctf_field_type_serialize(event_class->fields, context);
		if (ret) {
			goto end;
		}
		g_string_append(context->string, ";\n");
	}

	g_string_append(context->string, "};\n\n");
end:
	context->current_indentation_level = 0;
	BT_PUT(attr_value);
	return ret;
}

void bt_ctf_event_class_set_native_byte_order(
		struct bt_ctf_event_class *event_class,
		int byte_order)
{
	if (!event_class) {
		return;
	}

	assert(byte_order == 0 || byte_order == LITTLE_ENDIAN ||
		byte_order == BIG_ENDIAN);

	bt_ctf_field_type_set_native_byte_order(event_class->context,
		byte_order);
	bt_ctf_field_type_set_native_byte_order(event_class->fields,
		byte_order);
}
Commit	Line	Data
272df73e PP	1	/*
	2	* event-class.c
	3	*
	4	* Babeltrace CTF IR - Event class
	5	*
	6	* Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
	7	*
	8	* Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
	9	*
	10	* Permission is hereby granted, free of charge, to any person obtaining a copy
	11	* of this software and associated documentation files (the "Software"), to deal
	12	* in the Software without restriction, including without limitation the rights
	13	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	14	* copies of the Software, and to permit persons to whom the Software is
	15	* furnished to do so, subject to the following conditions:
	16	*
	17	* The above copyright notice and this permission notice shall be included in
	18	* all copies or substantial portions of the Software.
	19	*
	20	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	21	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	23	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	24	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	25	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	26	* SOFTWARE.
	27	*/
	28
	29	#include <babeltrace/ctf-ir/fields-internal.h>
	30	#include <babeltrace/ctf-ir/field-types-internal.h>
	31	#include <babeltrace/ctf-ir/event-class.h>
	32	#include <babeltrace/ctf-ir/event-class-internal.h>
	33	#include <babeltrace/ctf-ir/stream-class.h>
	34	#include <babeltrace/ctf-ir/stream-class-internal.h>
	35	#include <babeltrace/ctf-ir/trace-internal.h>
	36	#include <babeltrace/ctf-ir/validation-internal.h>
	37	#include <babeltrace/ctf-ir/utils.h>
	38	#include <babeltrace/ref.h>
	39	#include <babeltrace/ctf-ir/attributes-internal.h>
	40	#include <babeltrace/compiler.h>
6d9fe143	41	#include <babeltrace/endian.h>
272df73e PP	42
	43	static
	44	void bt_ctf_event_class_destroy(struct bt_object *obj);
	45
	46	struct bt_ctf_event_class bt_ctf_event_class_create(const char name)
	47	{
	48	int ret;
	49	struct bt_value *obj = NULL;
	50	struct bt_ctf_event_class *event_class = NULL;
	51
	52	if (bt_ctf_validate_identifier(name)) {
	53	goto error;
	54	}
	55
	56	event_class = g_new0(struct bt_ctf_event_class, 1);
	57	if (!event_class) {
	58	goto error;
	59	}
	60
5990dd44	61	event_class->id = -1;
272df73e PP	62	bt_object_init(event_class, bt_ctf_event_class_destroy);
	63	event_class->fields = bt_ctf_field_type_structure_create();
	64	if (!event_class->fields) {
	65	goto error;
	66	}
	67
	68	event_class->attributes = bt_ctf_attributes_create();
	69	if (!event_class->attributes) {
	70	goto error;
	71	}
	72
	73	obj = bt_value_integer_create_init(-1);
	74	if (!obj) {
	75	goto error;
	76	}
	77
	78	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
	79	"id", obj);
	80	if (ret) {
	81	goto error;
	82	}
	83
	84	BT_PUT(obj);
	85
	86	obj = bt_value_string_create_init(name);
	87	if (!obj) {
	88	goto error;
	89	}
	90
	91	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
	92	"name", obj);
	93	if (ret) {
	94	goto error;
	95	}
	96
	97	BT_PUT(obj);
	98
	99	return event_class;
	100
	101	error:
	102	BT_PUT(event_class);
	103	BT_PUT(obj);
	104	return event_class;
	105	}
	106
	107	const char bt_ctf_event_class_get_name(struct bt_ctf_event_class event_class)
	108	{
	109	struct bt_value *obj = NULL;
	110	const char *name = NULL;
	111
	112	if (!event_class) {
	113	goto end;
	114	}
	115
5990dd44 JG	116	if (event_class->name) {
	117	name = event_class->name;
	118	goto end;
	119	}
	120
272df73e PP	121	obj = bt_ctf_attributes_get_field_value(event_class->attributes,
	122	BT_CTF_EVENT_CLASS_ATTR_NAME_INDEX);
	123	if (!obj) {
	124	goto end;
	125	}
	126
	127	if (bt_value_string_get(obj, &name)) {
	128	name = NULL;
	129	}
	130
	131	end:
	132	BT_PUT(obj);
	133	return name;
	134	}
	135
	136	int64_t bt_ctf_event_class_get_id(struct bt_ctf_event_class *event_class)
	137	{
	138	struct bt_value *obj = NULL;
	139	int64_t ret = 0;
	140
	141	if (!event_class) {
	142	ret = -1;
	143	goto end;
	144	}
	145
5990dd44 JG	146	if (event_class->id >= 0) {
	147	ret = event_class->id;
	148	goto end;
	149	}
	150
272df73e PP	151	obj = bt_ctf_attributes_get_field_value(event_class->attributes,
	152	BT_CTF_EVENT_CLASS_ATTR_ID_INDEX);
	153	if (!obj) {
	154	goto end;
	155	}
	156
	157	if (bt_value_integer_get(obj, &ret)) {
	158	ret = -1;
	159	}
	160
	161	if (ret < 0) {
	162	/* means ID is not set */
	163	ret = -1;
	164	goto end;
	165	}
	166
	167	end:
	168	BT_PUT(obj);
	169	return ret;
	170	}
	171
	172	int bt_ctf_event_class_set_id(struct bt_ctf_event_class *event_class,
	173	uint32_t id)
	174	{
	175	int ret = 0;
	176	struct bt_value *obj = NULL;
	177	struct bt_ctf_stream_class *stream_class = NULL;
	178
	179
	180	if (!event_class) {
	181	ret = -1;
	182	goto end;
	183	}
	184
	185	stream_class = bt_ctf_event_class_get_stream_class(event_class);
	186	if (stream_class) {
	187	/*
	188	* We don't allow changing the id if the event class has already
	189	* been added to a stream class.
	190	*/
	191	ret = -1;
	192	goto end;
	193	}
	194
	195	obj = bt_ctf_attributes_get_field_value(event_class->attributes,
	196	BT_CTF_EVENT_CLASS_ATTR_ID_INDEX);
	197	if (!obj) {
	198	goto end;
	199	}
	200
	201	if (bt_value_integer_set(obj, id)) {
	202	ret = -1;
	203	goto end;
	204	}
	205
	206	end:
	207	BT_PUT(obj);
	208	BT_PUT(stream_class);
	209	return ret;
	210	}
	211
	212	int bt_ctf_event_class_set_attribute(
	213	struct bt_ctf_event_class event_class, const char name,
	214	struct bt_value *value)
215	{
216	int ret = 0;
217
218	if (!event_class \|\| !name \|\| !value \|\| event_class->frozen) {
219	ret = -1;
220	goto end;
221	}
222
2073703a JG	223	if (!strcmp(name, "id") \|\| !strcmp(name, "loglevel") \|\|
2073703a JG	224	!strcmp(name, "stream_id")) {
272df73e PP	225	if (!bt_value_is_integer(value)) {
	226	ret = -1;
	227	goto end;
	228	}
c3c30b08 MD	229	} else if (!strcmp(name, "name") \|\| !strcmp(name, "model.emf.uri") \|\|
c3c30b08 MD	230	!strcmp(name, "loglevel_string")) {
272df73e PP	231	if (!bt_value_is_string(value)) {
	232	ret = -1;
	233	goto end;
	234	}
	235	} else {
	236	/* unknown attribute */
	237	ret = -1;
	238	goto end;
	239	}
	240
	241	/* "id" special case: >= 0 */
	242	if (!strcmp(name, "id")) {
	243	int64_t val;
	244
	245	ret = bt_value_integer_get(value, &val);
	246
	247	if (ret) {
	248	goto end;
	249	}
	250
	251	if (val < 0) {
	252	ret = -1;
	253	goto end;
	254	}
	255	}
	256
	257	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
2073703a	258	name, value);
272df73e PP	259
	260	end:
	261	return ret;
	262	}
	263
	264	int bt_ctf_event_class_get_attribute_count(
	265	struct bt_ctf_event_class *event_class)
	266	{
	267	int ret = 0;
	268
	269	if (!event_class) {
	270	ret = -1;
	271	goto end;
	272	}
	273
	274	ret = bt_ctf_attributes_get_count(event_class->attributes);
	275
	276	end:
	277	return ret;
	278	}
	279
	280	const char *
	281	bt_ctf_event_class_get_attribute_name(
	282	struct bt_ctf_event_class *event_class, int index)
	283	{
	284	const char *ret;
	285
	286	if (!event_class) {
	287	ret = NULL;
	288	goto end;
	289	}
	290
	291	ret = bt_ctf_attributes_get_field_name(event_class->attributes, index);
	292
	293	end:
	294	return ret;
	295	}
	296
	297	struct bt_value *
	298	bt_ctf_event_class_get_attribute_value(struct bt_ctf_event_class *event_class,
	299	int index)
	300	{
	301	struct bt_value *ret;
	302
	303	if (!event_class) {
	304	ret = NULL;
	305	goto end;
	306	}
	307
	308	ret = bt_ctf_attributes_get_field_value(event_class->attributes, index);
	309
	310	end:
	311	return ret;
	312	}
	313
	314	struct bt_value *
	315	bt_ctf_event_class_get_attribute_value_by_name(
	316	struct bt_ctf_event_class event_class, const char name)
	317	{
	318	struct bt_value *ret;
	319
	320	if (!event_class \|\| !name) {
	321	ret = NULL;
	322	goto end;
323	}
324
325	ret = bt_ctf_attributes_get_field_value_by_name(event_class->attributes,
326	name);
327
328	end:
329	return ret;
330
331	}
332
333	struct bt_ctf_stream_class *bt_ctf_event_class_get_stream_class(
334	struct bt_ctf_event_class *event_class)
335	{
336	return (struct bt_ctf_stream_class *) bt_object_get_parent(event_class);
337	}
338
339	struct bt_ctf_field_type *bt_ctf_event_class_get_payload_type(
340	struct bt_ctf_event_class *event_class)
341	{
342	struct bt_ctf_field_type *payload = NULL;
343
344	if (!event_class) {
345	goto end;
346	}
347
348	bt_get(event_class->fields);
349	payload = event_class->fields;
350	end:
351	return payload;
352	}
353
354	int bt_ctf_event_class_set_payload_type(struct bt_ctf_event_class *event_class,
355	struct bt_ctf_field_type *payload)
356	{
357	int ret = 0;
358
835b2d10 JG	359	if (!event_class) {
	360	ret = -1;
	361	goto end;
	362	}
	363
	364	if (payload && bt_ctf_field_type_get_type_id(payload) !=
	365	BT_CTF_TYPE_ID_STRUCT) {
272df73e PP	366	ret = -1;
	367	goto end;
	368	}
	369
272df73e	370	bt_put(event_class->fields);
835b2d10	371	event_class->fields = bt_get(payload);
272df73e PP	372	end:
	373	return ret;
	374	}
	375
	376	int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class,
	377	struct bt_ctf_field_type *type,
	378	const char *name)
	379	{
	380	int ret = 0;
	381
	382	if (!event_class \|\| !type \|\| bt_ctf_validate_identifier(name) \|\|
	383	event_class->frozen) {
	384	ret = -1;
	385	goto end;
	386	}
	387
	388	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
	389	BT_CTF_TYPE_ID_STRUCT) {
	390	ret = -1;
	391	goto end;
	392	}
	393
	394	ret = bt_ctf_field_type_structure_add_field(event_class->fields,
	395	type, name);
	396	end:
	397	return ret;
	398	}
	399
	400	int bt_ctf_event_class_get_field_count(
	401	struct bt_ctf_event_class *event_class)
	402	{
	403	int ret;
	404
	405	if (!event_class) {
	406	ret = -1;
	407	goto end;
	408	}
	409
	410	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
	411	BT_CTF_TYPE_ID_STRUCT) {
	412	ret = -1;
	413	goto end;
	414	}
	415
	416	ret = bt_ctf_field_type_structure_get_field_count(event_class->fields);
	417	end:
	418	return ret;
	419	}
	420
	421	int bt_ctf_event_class_get_field(struct bt_ctf_event_class *event_class,
	422	const char field_name, struct bt_ctf_field_type field_type,
	423	int index)
	424	{
	425	int ret;
	426
	427	if (!event_class \|\| index < 0) {
	428	ret = -1;
	429	goto end;
	430	}
	431
	432	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
	433	BT_CTF_TYPE_ID_STRUCT) {
	434	ret = -1;
	435	goto end;
436	}
437
438	ret = bt_ctf_field_type_structure_get_field(event_class->fields,
439	field_name, field_type, index);
440	end:
441	return ret;
442	}
443
444	struct bt_ctf_field_type *bt_ctf_event_class_get_field_by_name(
445	struct bt_ctf_event_class event_class, const char name)
446	{
447	GQuark name_quark;
448	struct bt_ctf_field_type *field_type = NULL;
449
450	if (!event_class \|\| !name) {
451	goto end;
452	}
453
454	if (bt_ctf_field_type_get_type_id(event_class->fields) !=
455	BT_CTF_TYPE_ID_STRUCT) {
456	goto end;
457	}
458
459	name_quark = g_quark_try_string(name);
460	if (!name_quark) {
461	goto end;
462	}
463
464	/*
465	* No need to increment field_type's reference count since getting it
466	* from the structure already does.
467	*/
468	field_type = bt_ctf_field_type_structure_get_field_type_by_name(
469	event_class->fields, name);
470	end:
471	return field_type;
472	}
473
474	struct bt_ctf_field_type *bt_ctf_event_class_get_context_type(
475	struct bt_ctf_event_class *event_class)
476	{
477	struct bt_ctf_field_type *context_type = NULL;
478
479	if (!event_class \|\| !event_class->context) {
480	goto end;
481	}
482
483	bt_get(event_class->context);
484	context_type = event_class->context;
485	end:
486	return context_type;
487	}
488
489	int bt_ctf_event_class_set_context_type(
490	struct bt_ctf_event_class *event_class,
491	struct bt_ctf_field_type *context)
492	{
493	int ret = 0;
494
835b2d10	495	if (!event_class \|\| event_class->frozen) {
272df73e PP	496	ret = -1;
	497	goto end;
	498	}
	499
835b2d10 JG	500	if (context && bt_ctf_field_type_get_type_id(context) !=
835b2d10 JG	501	BT_CTF_TYPE_ID_STRUCT) {
272df73e PP	502	ret = -1;
	503	goto end;
	504	}
	505
272df73e	506	bt_put(event_class->context);
835b2d10	507	event_class->context = bt_get(context);
272df73e PP	508	end:
	509	return ret;
	510
	511	}
	512
	513	void bt_ctf_event_class_get(struct bt_ctf_event_class *event_class)
	514	{
	515	bt_get(event_class);
	516	}
	517
	518	void bt_ctf_event_class_put(struct bt_ctf_event_class *event_class)
	519	{
	520	bt_put(event_class);
	521	}
	522
	523	BT_HIDDEN
	524	int bt_ctf_event_class_set_stream_id(struct bt_ctf_event_class *event_class,
	525	uint32_t stream_id)
	526	{
	527	int ret = 0;
	528	struct bt_value *obj;
	529
	530	obj = bt_value_integer_create_init(stream_id);
	531
	532	if (!obj) {
	533	ret = -1;
	534	goto end;
	535	}
	536
	537	ret = bt_ctf_attributes_set_field_value(event_class->attributes,
	538	"stream_id", obj);
	539
	540	if (event_class->frozen) {
	541	bt_ctf_attributes_freeze(event_class->attributes);
	542	}
	543
	544	end:
	545	BT_PUT(obj);
	546	return ret;
	547	}
	548
	549	static
	550	void bt_ctf_event_class_destroy(struct bt_object *obj)
	551	{
	552	struct bt_ctf_event_class *event_class;
	553
	554	event_class = container_of(obj, struct bt_ctf_event_class, base);
	555	bt_ctf_attributes_destroy(event_class->attributes);
	556	bt_put(event_class->context);
	557	bt_put(event_class->fields);
	558	g_free(event_class);
	559	}
	560
	561	BT_HIDDEN
	562	void bt_ctf_event_class_freeze(struct bt_ctf_event_class *event_class)
	563	{
	564	assert(event_class);
	565	event_class->frozen = 1;
5990dd44 JG	566	event_class->name = bt_ctf_event_class_get_name(event_class);
5990dd44 JG	567	event_class->id = bt_ctf_event_class_get_id(event_class);
272df73e PP	568	bt_ctf_field_type_freeze(event_class->context);
	569	bt_ctf_field_type_freeze(event_class->fields);
	570	bt_ctf_attributes_freeze(event_class->attributes);
	571	}
	572
	573	BT_HIDDEN
	574	int bt_ctf_event_class_serialize(struct bt_ctf_event_class *event_class,
	575	struct metadata_context *context)
	576	{
	577	int i;
	578	int count;
	579	int ret = 0;
	580	struct bt_value *attr_value = NULL;
	581
	582	assert(event_class);
	583	assert(context);
	584
	585	context->current_indentation_level = 1;
	586	g_string_assign(context->field_name, "");
	587	g_string_append(context->string, "event {\n");
	588	count = bt_ctf_event_class_get_attribute_count(event_class);
	589
	590	if (count < 0) {
	591	ret = -1;
	592	goto end;
	593	}
	594
	595	for (i = 0; i < count; ++i) {
	596	const char *attr_name = NULL;
	597
	598	attr_name = bt_ctf_event_class_get_attribute_name(
	599	event_class, i);
	600	attr_value = bt_ctf_event_class_get_attribute_value(
	601	event_class, i);
	602
	603	if (!attr_name \|\| !attr_value) {
	604	ret = -1;
	605	goto end;
	606	}
	607
	608	switch (bt_value_get_type(attr_value)) {
	609	case BT_VALUE_TYPE_INTEGER:
	610	{
	611	int64_t value;
	612
	613	ret = bt_value_integer_get(attr_value, &value);
	614
	615	if (ret) {
	616	goto end;
	617	}
	618
	619	g_string_append_printf(context->string,
	620	"\t%s = %" PRId64 ";\n", attr_name, value);
	621	break;
	622	}
	623
	624	case BT_VALUE_TYPE_STRING:
	625	{
	626	const char *value;
	627
	628	ret = bt_value_string_get(attr_value, &value);
	629
	630	if (ret) {
	631	goto end;
632	}
633
634	g_string_append_printf(context->string,
635	"\t%s = \"%s\";\n", attr_name, value);
636	break;
637	}
638
639	default:
640	/* should never happen */
641	assert(false);
642	break;
643	}
644
645	BT_PUT(attr_value);
646	}
647
648	if (event_class->context) {
649	g_string_append(context->string, "\tcontext := ");
650	ret = bt_ctf_field_type_serialize(event_class->context,
651	context);
652	if (ret) {
653	goto end;
654	}
655	g_string_append(context->string, ";\n");
656	}
657
658	if (event_class->fields) {
659	g_string_append(context->string, "\tfields := ");
660	ret = bt_ctf_field_type_serialize(event_class->fields, context);
661	if (ret) {
662	goto end;
663	}
664	g_string_append(context->string, ";\n");
665	}
666
667	g_string_append(context->string, "};\n\n");
668	end:
669	context->current_indentation_level = 0;
670	BT_PUT(attr_value);
671	return ret;
672	}
673
674	void bt_ctf_event_class_set_native_byte_order(
675	struct bt_ctf_event_class *event_class,
676	int byte_order)
677	{
678	if (!event_class) {
679	return;
680	}
681
682	assert(byte_order == 0 \|\| byte_order == LITTLE_ENDIAN \|\|
683	byte_order == BIG_ENDIAN);
684
685	bt_ctf_field_type_set_native_byte_order(event_class->context,
686	byte_order);
687	bt_ctf_field_type_set_native_byte_order(event_class->fields,
688	byte_order);
689	}